<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>BMI测试</title>
</head>
<body>
    <center>
        <h1>BMI测试</h1>
        <form action="/bmi">
            体重:<input type="text" name="weight" placeholder="请输入您的体重(kg)">
            身高:<input type="text" name="height" placeholder="请输入您的身高(m)">
            <input type="submit" value="测试">
        </form>
    </center>
</body>
</html>